After suffering a leaking port side window this last fall I have finally taken the plunge and removed both port and starboard windows from the 390 this weekend with the intention of re-bedding and trying to find an improvement on the center piece that is where I think the leak came from in the first place. I ran into a small problem after removal that I would like opinions on. It looks like the windows might have been pulled before due to some clear silicone in the opening cavities, but I'm not certain. Either way, getting the old sealant separated and the frames out was a bugger. The top side of the frame wasn't too bad as I could get a sharp painters tool between the frame and the fiberglass and got it free without pulling on the frame. The lower frame was another story! After getting the frame out, there are some areas where the gel coat separated from the fiberglass and there is no longer gel coat there. What is your opinion here? Should I repair the gel coat prior to putting the frames back in or leave it as it is and re-bed and install the frames? I was planning to use 3M 5200 to seal, but wonder if 4200 would be better - opinions? Also, what ideas have any of you that have done this before tried with the center acrylic piece that is but fit to the frames to keep it from leaking? I only want to do this once, and do it right!